• 제목/요약/키워드: 미세수술

검색결과 983건 처리시간 0.02초

신동맥 색전술로 치료한 신혈관 고혈압증 1례 (A Case of Renovascular Hypertension Controlled by Renal Artery Embolization)

  • 유정훈;김영득;신병석;길홍량
    • Clinical and Experimental Pediatrics
    • /
    • 제48권2호
    • /
    • pp.212-215
    • /
    • 2005
  • 신성 고혈압은 소아기 이차성 고혈압의 흔한 원인이며, 그 중 신동맥 협착은 치료 가능한 고혈압의 가장 흔한 원인이다. 신혈관성 고혈압 치료로 약물치료에 반응하지 않는 경우 혹은 초기 단계부터 치료목적으로 경피적 혈관 성형술과 신장동맥 스텐트 등의 중재적 혈관 성형술이나 수술요법이 시행할 수 있다. 죽상 경화형 협착, 다발성의 협착, 미세동맥류, 그리고 협착 부위가 혈관 성형술이나 stent로 교정되기 어려운 경우에는 부분적 혹은 완전 신장동맥 색전술이 시도될 수 있다. 저자들은 신장동맥 색전술을 이용한 renal ablation요법으로 고혈압의 호전을 보인 신혈관 고혈압증 1례를 경험하였기에 보고하는 바이다.

내측 족저부 감각 유리피판을 이용한 조직결손 재건술 (Clnical Application of Sensate Instep Free Flaps)

  • 이훈범;탁관철
    • Archives of Reconstructive Microsurgery
    • /
    • 제3권1호
    • /
    • pp.54-63
    • /
    • 1994
  • Pulp and palm of the hand and heel of the sole are anatomically unique. Satisfactory reconstruction of these areas presents the plastic surgeon with many challenges and requires durable and sensible skin coverage, minimal donor morbidity and reliable operative procedure. We presents 7 clinical cases of sensate instep free flap transfer in this paper during the last 2 years. Three cases were soft tissue defects due to crushing and avulsion injury on the pulp of finger. 1 case was unstable scar and redundant flap after reconstruction of soft tissue dect of palm and 1 case was contracture of first web of hand. One case was a soft tissue defect due to avulsion injury on heel. Lastly, one case was chronic osteomyelitis with open wound on lateral malleolar area. Follow-up period ranged from 3 months to 2 years. Through the whole follow-up period, all flaps were viable and durable to persistant stress or weight bearing and were sensible enough to porotect the recocstructed area from injuries and maintain functions. In conclusions, the instep free flap should be considered as a valuable tool in reconstruction of hand and extremity requiring durability and sensation.

  • PDF

"No-Reflow" 현상에 대한 Urokinase 압력주입의 효과 (The Effect of Pressure Injection of Urokinase to Reverse the "No-Reflow" Phenomenon)

  • 박대환
    • Archives of Reconstructive Microsurgery
    • /
    • 제3권1호
    • /
    • pp.40-44
    • /
    • 1994
  • Microsurgery has advanced beyond its nascent stages reaching success rates of 90% to 95%. However, this means that even in the best circumstances, 5% to 10% of free flaps and replants fail. Almost all failures are due to vessel thrombosis, resulting in ischemia of the transplanted tissue. Many attemps have been undertaken to treat and reverse its effects. Zdeblick and colleagues noted an improvement in the viability of amputated limbs replanted after an extended period of ischemia following intraarterial infusion of urokinase. Subsequent studies have investigated many modalities of urokinase administration in various animal models by differing ischemic periods. These studies, however, have failed to establish a definitive, generally accepted protocol for administration of urokinase in the salvage of tissue subjected to prolonged ischemia. Our clinical observations suggest that a bolus of urokinase delivered under pressure may increase the thromoblytic effect of the drug, probably by means of increased delivery to microvasculature. We intend to investigate the role of selective pressure perfusion of ischemic flaps as a new means for increasing the effectiveness of urokinase in the treatment of the "no-reflow" phenomenon. A total of 32 male New Zealand rabbits were used and divided into the four groups according to the method of infusion. After 12 hours of ischemia the flaps were injected with Hartmann's solution or with urokinase and the percent survival of the flap was determined at 7 days following flap reperfusion. As the result, the flap survival rate was highest in the pressure injection of urokinase group.

  • PDF

광배근 피판의 비전형적인 혈관 해부학적 증례에 대한 보고 (The Report for Atypical Vascular Variations in the Latissimus Dorsi Myocutaneous Flaps)

  • 정덕환;한정수;이재훈
    • Archives of Reconstructive Microsurgery
    • /
    • 제11권2호
    • /
    • pp.135-140
    • /
    • 2002
  • It has been known that latissimus dorsi(LD) myocutaneous flap based on thoracodorsal artery is one of most useful method for microreconstructive surgery and the thoracodorsal artery of this flap has constant vascular anatomy. The retrospective study for anatomy of the thoracodorsal arterial system was performed at operative cases. The aim of this study was to document the anatomical variation of this pedicle clinically. 167 LD flaps were carried out from 1983 to 2002 in our clinic. We found unusual 7(4.2%) cases compared to standard textbooks of anatomy. One case was no vascular supply to LD muscle. In 2(1.2%) cases thoracodorsal artery was a typical branch of the subscapular artery but didn't branch to LD muscle, passed to lower serratus anterior muscle, and at this point, supplied vessel to LD muscle and it's vascular diameter was about 1mm diameter. The thoracodorsal artery arose from the axillary artery in 1.8% of cases(3 cases). One case had less than 1mm vascular diameter but a branch of subscapluar artery. It should be emphasized that we must elevate the latissimus dorsi flap after accurate cognition for the anatomy of thoracodorsal artery because the thoracodorsal arterial system is almost reliable but not uniform in rare cases.

  • PDF

유리 동맥화 정맥피판술을 이용한 수지 굴곡구축의 치료 (Treatment of the Finger Flexion Contracture with Arterialized Venous Free Flap)

  • 조창현;정덕환
    • Archives of Reconstructive Microsurgery
    • /
    • 제13권2호
    • /
    • pp.117-122
    • /
    • 2004
  • Purpose : The aim of this study was to evaluate the efficacy of arterialized venous flap in finger flexion contracture correction. Materials and methods : From 2002 to 2004, we have performed 10 arteriaized venous flap for treatment of severe flexion contracture in digit. The duration of flexion contracture was from 1 year to 50 years. The cause of contracture were bum scar(7 cases), postoperative contracture(2 cases) and other(l case). We evaluated the survival of flap, flap size, recovery of flexion contracture and subjective satisfaction. Results : All arterialized venous flap survived. The marginal minimal skin necrosis developed in 2 cases. The flap size was average $5.2{\times}3.5cm$. The recovery of flexion contracture was 87% compared with non affected side. 9 patients(90%) satisfied the results of operation. Conclusion : Arterialized venous flap is one of the useful procedure in treatment of finger flexion contracture because it has many advantages such as thin and good quality, variable length of pedicle, preservation of major vascular pedicle, less operation time and in addition possibility of various modifications.

  • PDF

전기 화상 환자에서 수근부 및 전완부의 전외측 대퇴근막 유리 피판술을 이용한 재건 (Reconstruction of Wrist and Forearm with use of Anterolateral Thigh Free Flap in High Tension Electrical Burn Patients)

  • 윤형노;이준협;이태섭;이동은
    • Archives of Reconstructive Microsurgery
    • /
    • 제11권2호
    • /
    • pp.179-185
    • /
    • 2002
  • The wrist and forearm are a frequently damaged area in high tension electrical injury as an input or output of the current. Electrical burns affecting the wrist and forearm may produce full thickness necrosis of the skin and damage deep vital structures beneath the eschar, affecting the local tendons, nerves, even bones and joints which result in serious dysfunction of the hand. From January 1997 to December 2001, we had treated 20 patients with high tension electrical burn in the wrist and forearm using anterolateral thigh free flap. Average follow up period were 24 months and we get satisfactory results both in functional and aesthetic aspects. This flap is considered useful in one-stage reconstruction of wide and large soft tissue defect combined with arterial injuries.

  • PDF

슬관절주위 외상에 의한 슬와동맥 손상의 재혈관화 (Revascularization of Popliteal Artery Injury in Trauma Around Knee Joint)

  • 한수홍;신동은;단진명;김철
    • Archives of Reconstructive Microsurgery
    • /
    • 제17권1호
    • /
    • pp.7-13
    • /
    • 2008
  • Popliteal artery injury in blunt trauma of knee joint is not common but poses high rate of amputation due to anatomical characteristics or delayed diagnosis and treatment. The aim of the present study is to review the authors' experiences with this condition and identify factors contributing to disability. We reviewed 7 cases of popliteal artery injury in trauma around knee. Injury mechanism, type of vessel damage, associated injuries, mangled extremity severity scores (MESS), ischemic time and additional treatments were analyzed. Tibial fracture, distal femoral fracture and serious soft tissue defect were combined. Mean MESS was 9.9 point and mean time of revascularization was 7.1 hours. Transfemoral amputation was performed in 2 cases due to vascular insufficiency and devastating infection, and 4 patients were able to walk without any support at the last follow up. Age, the severity of soft tissue injury, ischemic time and MESS are thought to be related to prognosis, and young patients with short ischemic time show best results, but authors experienced one exceptional case. We have to consider multiple factors related to the prognosis in popliteal artery injury with fractures around knee, and careful decision is needed regarding to early amputation.

  • PDF

유리피판을 이용한 사지 연부조직 악성종양 절제 결손의 재건례 (Reconstruction of Defect After Wide Excision of Malignant Soft Tissue Tumor of Limb Using Free Flap)

  • 권영호;사공은성
    • Archives of Reconstructive Microsurgery
    • /
    • 제17권1호
    • /
    • pp.14-18
    • /
    • 2008
  • Purpose: Evaluation of results of free flap as a method of reconstruction in soft tissue defect after wide excision of soft tissue tumor of extremity. Materials and Methods: From 2000 through 2007, 11 patients received free flap surgery for soft tissue defect after wide excision operation for soft tissue tumor of limbs. Four cases were upper extremities and seven were lower extremities. Four subjects were diagnosed as squamous cell carcinoma, three as malignant melanoma, two as synovial sarcoma and one as malignant fibrous histiocytoma and alveolar soft part sarcoma. Donor sites of free flap varied with anterolateral thigh flaps in six cases, latissimus dorsi flaps in four, reverse forearm flap in one. By the method of doppler ultrasound, venous circulation was evaluated for the survival of each flap on the third, fifth and seventh day respectively after the operation. Results: 10 of 11 free flaps were successfully survived. Necrosis of free flaps in 1 cases occurred in case of anterolateral thigh flap. Conclusion: Free flap can be a useful method for reconstruction of soft tissue defect after wide excision of soft tissue sarcoma of extremity.

  • PDF

상둔 동맥 혈관경 후방 장골릉 골 이식을 이용한 대퇴골 두 무혈성 괴사의 치료 (Superior Gluteal Artery-pedicled Iliac Crest for the Treatment of Avascular Necrosis of Femoral Head)

  • 이상욱;송석환;서유준;박승범
    • Archives of Reconstructive Microsurgery
    • /
    • 제17권1호
    • /
    • pp.42-47
    • /
    • 2008
  • Introduction: To evaluate the efficacy of superior gluteal artery-pedicled iliac crest for the treatment of avascular necrosis of femoral head. Material & Method: From January 2001 to October 2001, we used the superior deep branches of superior gluteal artery for the pedicled posterior iliac crest bone graft to revascularize the avascular femoral head in 4 patients. They were 1 man and 3 women, and the mean age of the patients was 34 years (range, 27 to 60). The average follow-up after surgery was over 57 months (range, 15 to 82). We analyzed the clinical results by the Harris hip score, and evaluated the vascularity of the femoral head by radiographic methods. Results: All cases showed no evidence of collapse on femoral heads and good revascularizations on the radiographic images. The average Harris hip score was 88.5 points. There was no complication. Conclusion: The revascularization procedure using the superior gluteal artery-pedicled posterior iliac crest was thought to be one of the effective and promising techniques for the treatment of the avascular necrosis of femoral head.

  • PDF

Reconstruction of Penile and Long Urethral Defect Using a Groin Flap

  • Hwang, So-Min;Lim, On;Kim, Hyung-Do;Shin, Dong-Gil
    • Archives of Reconstructive Microsurgery
    • /
    • 제25권1호
    • /
    • pp.19-24
    • /
    • 2016
  • Urethral reconstruction is a problematic issue, thus its management can be challenging. Different methods using various materials were introduced for urethral reconstruction. The authors have made some changes in the groin flap surgery, affording more successful urethral reconstruction for defects of long urethra and penile soft tissue. A 45-year-old male requested both functional and cosmetic reconstruction of his defected penis, caused by an iatrogenic urethral injury and chronic infection following removal of paraffin self-injected on the penile shaft. The defect affected the full length of the penile urethra, corpus spongiosum, and prepuce. A groin flap was designed, measuring $28{\times}10cm$. The most distal flap was utilized for the construction of the luminal surface of the neourethra; relaxed length measuring 8 cm, and the lumen wide enough. Competent external meatus and neourethra was confirmed by retrograde cystogram and the patient voided with sufficient urine caliber up to 2 years follow-up. This operative technique has advantages. Donor sites have non-hair bearing skin for the neourethra and minimal or almost notrecognizable donor site morbidity. After surgery, the patient was relieved from voiding difficulties combined with psychological stress. The author would like to introduce a unique approach for the urethral and ventral phalloplasty using the groin flap.